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VISION 5000 Videoconferencing System
93
Appendix 4
Appendix 4: LED indication
On the front of the Codec, there are 18 LEDs to give the user precise information on the status of the Codec and the network
activity. The LED display is specially designed to provide the user with quick and accurate indications whenever there is a
change of status. G, Y, and R mean green, yellow, and red, respectively. (For convenience the LEDs in the example below
are diveded into 2 boxes refered to as Left and Right, although there is not such a division on the physical display)
G
G
G
G
G
G
G
G
G
G
G
G
G
G
Y
Y
R
R
Power
IR
BRI1 H221-1BRI2 BRI4BRI3
H221-2
PRI2
PRI1
LED 2
LED 1
Each LED can have three states; off, blink, and on. All states are not applicable to all LEDs. The table below shows the possible
LED states for the LEDs in the Left box.
LED LED1 LED2 Description
Power Off Power is off
On Power is on
IR Blink IR code received
H221 Off Off No call
On Off H221 active on 1 channel (PRI/Ext)
On On H221 active on 2 channels (PRI/Ext)
Off On N/A
BRI (1-4) Off Off Layer 1&2 active or BRI disabled
Blink Off Layer 1 active, Layer 2 deactivated
Blink Blink Layer 1 deactivated
On Off Connected on 1B
On On Connected on 2B
The PRI LEDs in the Right box are indicating PRI/T1 status and are defined as below:
Green Yellow Red Description
Off Off Off PRI disabled
Off Off Blink Blue alarm
Off Off On Red alarm
Off On Off Yellow alarm
Off On Blink Blue and yellow alarm
Off On On Red and yellow alarm
Blink Off Off Sync (Layer 2 deactivated)
On Off Off Established
Blink Blink Off Sync and loop active (Layer 2 deactivated)
On Blink Off Established and loop active
Power
IR